Merge branch 'v0.8'

.idea/.name

.idea/vcs.xml

AUTHORS

CHANGELOG.md

CMakeLists.txt

README.md

forms/HLine.png

forms/Redo-Icon.png

forms/Ressource.qrc

forms/Undo-icon.png

forms/anglesnap.PNG

forms/mainwindow.ui

forms/roomwidget.ui

forms/widgetsettings.ui

jpseditor.pro

src/GraphicView.cpp

src/GraphicView.h

src/UndoFramework/action.cpp

src/UndoFramework/action.h

src/UndoFramework/actionstack.cpp